{"product_id":"serta-iseries-nxg-mattress-1500-hybrid-firm-foam-available-in-twin-xl-full-queen-king-and-cal-king-sizes","title":"Serta iSeries NXG Mattress 1500 Hybrid Firm ~ Available in Twin XL, Full, Queen, King and Cal King Sizes","description":"\u003cstyle\u003e\n.accordion-container{max-width:1200px;margin:0 auto;font-family:Montserrat,sans-serif}\n.accordion-item{margin-bottom:15px;border:1px solid #e0e0e0;border-radius:8px;overflow:hidden;background:#fff}\n.accordion-header{background:#fff;color:#000;padding:18px 24px;cursor:pointer;font-size:18px;font-weight:600;display:flex;justify-content:space-between;align-items:center;transition:all .3s ease;border-bottom:1px solid #e0e0e0}\n.accordion-header:hover{background:#f8f8f8}\n.accordion-header::after{content:'+';font-size:24px;font-weight:300;transition:transform .3s ease}\n.accordion-header.active{background:#f5f5f5}\n.accordion-header.active::after{transform:rotate(45deg)}\n.accordion-content{max-height:0;overflow:hidden;transition:max-height .3s ease}\n.accordion-content.active{max-height:5000px}\n.content-inner{padding:24px;line-height:1.8;color:#333}\n.content-inner h3{color:#000;margin-top:24px;margin-bottom:12px;font-size:20px;font-weight:600}\n.content-inner p{margin-bottom:16px}\n.content-inner ul{margin:16px 0;padding-left:24px}\n.content-inner ul li{margin-bottom:8px}\n.specs-table{width:100%;border-collapse:collapse;margin:20px 0}\n.specs-table td{padding:12px;border-bottom:1px solid #e0e0e0}\n.specs-table td:first-child{font-weight:600;width:40%}\n.cta-box{background:transparent;color:#000;padding:30px;border:2px solid #000;border-radius:8px;margin-top:30px;text-align:center}\n.cta-box h3{color:#000;margin:0 0 10px;font-size:22px}\n.cta-box p{margin:0 0 15px;color:#000}\n.cta-box a{color:#000;text-decoration:underline;font-weight:600}\n\u003c\/style\u003e\n\n\u003cdiv class=\"accordion-container\"\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nSerta iSeries NXG 1500 Hybrid Firm Mattress\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSerta iSeries NXG 1500 Hybrid Firm Mattress\u003c\/strong\u003e delivers immediate cooling, instant pressure relief, and firm support for deeper sleep. Features \u003cstrong\u003ehigh-density NXG Memory Foam\u003c\/strong\u003e for contouring pressure relief with firm foundation. \u003cstrong\u003eCoolFeel Cover\u003c\/strong\u003e provides cool-to-touch surface while \u003cstrong\u003eCarbon Fiber Memory Foam\u003c\/strong\u003e draws heat away from body. \u003cstrong\u003e5-zone coil system\u003c\/strong\u003e with alternating firm and plush areas supports back and body curves. \u003cstrong\u003eBestEdge Support\u003c\/strong\u003e provides edge-to-edge stability. \u003cstrong\u003eGreat for stomach and back sleepers\u003c\/strong\u003e. Available in Twin XL, Full, Queen, King, and Cal King sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nSpecifications\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollection\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSerta iSeries NXG 1500\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComfort Level\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eFirm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMattress Type\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eHybrid (Memory Foam + Coils)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Sizes\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTwin XL, Full, Queen, King, Cal King\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFoam Technology\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNXG Memory Foam (High-Density)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling Layers\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCoolFeel Cover, Carbon Fiber Memory Foam\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport System\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5-Zone Coil System\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEdge Support\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eBestEdge Support Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotion Control\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePartner Movement Isolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eStomach and Back Sleepers\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSerta\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nPressure Relief \u0026amp; Support\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003ch3\u003eNXG Memory Foam Technology\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003ehigh-density NXG Memory Foam\u003c\/strong\u003e provides contouring pressure relief while maintaining firm support foundation. This innovative premium foam responds to body weight without excessive sinking, delivering pressure relief at key contact points while keeping spine properly aligned on firm surface ideal for stomach and back sleeping.\u003c\/p\u003e\n\n\u003ch3\u003e5-Zone Coil System\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e5-zone hybrid coil system\u003c\/strong\u003e features alternating firm and plush areas that prevent lower back arching for stomach sleepers and maintain spinal alignment for back sleepers. Firmer coils beneath lumbar region provide strong support while coils adjust to body curves. \u003cstrong\u003eBestEdge Support\u003c\/strong\u003e maintains stability from edge to edge, maximizing sleeping surface and preventing roll-off.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nCooling Technology\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eCoolFeel Cover\u003c\/strong\u003e provides cool-to-touch surface that delivers immediate cooling sensation when you lie down, helping you fall asleep faster. The fabric dissipates body heat for comfortable initial contact with mattress surface.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCarbon Fiber Memory Foam layer\u003c\/strong\u003e actively draws heat away from body throughout the night. Carbon fiber's thermal conductivity pulls warmth from sleep surface and disperses it, maintaining comfortable temperature. The firm surface prevents deep sinking that can trap heat, working with cooling layers for all-night comfort.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nCare Instructions\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003eUse mattress protector to guard against stains. Rotate head-to-foot every three to six months for even wear. Avoid jumping or standing on mattress. Do not fold or bend. Allow new mattress to air out for 24-48 hours after unboxing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nFrequently Asked Questions\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003ch3\u003eWhy firm for stomach sleepers?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFirm support prevents lower back arching\u003c\/strong\u003e that occurs when stomach sleepers sink too deeply into soft mattress. The firm foundation keeps hips from dropping below shoulders, maintaining neutral spine alignment. This prevents morning back pain and supports proper sleeping posture for stomach sleepers.\u003c\/p\u003e\n\n\u003ch3\u003eHow does 1500 differ from 3500?\u003c\/h3\u003e\n\u003cp\u003eBoth offer \u003cstrong\u003efirm support with NXG Memory Foam and 5-zone coils\u003c\/strong\u003e. The 1500 provides entry-level firm comfort at accessible price while 3500 may have enhanced foam layers. Both suit stomach and back sleepers needing firm support with same core technologies and cooling features.\u003c\/p\u003e\n\n\u003ch3\u003eDoes firm mean uncomfortable?\u003c\/h3\u003e\n\u003cp\u003eNo, the \u003cstrong\u003eNXG Memory Foam provides pressure relief\u003c\/strong\u003e on firm foundation. Firm doesn't mean hard; it means supportive surface that prevents excessive sinking. The memory foam layers contour to body while coil system maintains firm support, creating comfortable firm feel that's supportive not rigid.\u003c\/p\u003e\n\n\u003ch3\u003eWill I feel partner movement?\u003c\/h3\u003e\n\u003cp\u003eThe mattress \u003cstrong\u003eminimizes motion transfer\u003c\/strong\u003e despite firm feel. Memory foam layers absorb movement while individually wrapped coils move independently. When partner shifts or gets up, you experience less disturbance compared to traditional innerspring mattresses, even with firmer support level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"cta-box\"\u003e\n\u003ch3\u003eGet 20% Off + Free Delivery\u003c\/h3\u003e\n\u003cp\u003eQuestions about this product? Our specialists are here to help.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"tel:8552233267\"\u003eCall\/Text: 855.223.3267\u003c\/a\u003e | \u003ca href=\"mailto:cs@casabelladecor.net\"\u003eEmail: cs@casabelladecor.net\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript\u003e\nfunction toggleAccordion(header) {\n  var content = header.nextElementSibling;\n  var isActive = header.classList.contains('active');\n  var allHeaders = document.querySelectorAll('.accordion-header');\n  var allContents = document.querySelectorAll('.accordion-content');\n  \n  for(var i = 0; i \u003c allHeaders.length; i++) {\n    allHeaders[i].classList.remove('active');\n  }\n  for(var i = 0; i \u003c allContents.length; i++) {\n    allContents[i].classList.remove('active');\n  }\n  \n  if(!isActive) {\n    header.classList.add('active');\n    content.classList.add('active');\n  }\n}\n\u003c\/script\u003e","brand":"Serta","offers":[{"title":"TWIN XL","offer_id":44912533340360,"sku":null,"price":1699.0,"currency_code":"USD","in_stock":true},{"title":"FULL","offer_id":44912533373128,"sku":null,"price":1849.0,"currency_code":"USD","in_stock":true},{"title":"QUEEN","offer_id":44912533405896,"sku":null,"price":1999.0,"currency_code":"USD","in_stock":true},{"title":"KING","offer_id":44912533471432,"sku":null,"price":2599.0,"currency_code":"USD","in_stock":true},{"title":"CAL KING","offer_id":44912533536968,"sku":null,"price":2599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8519\/3928\/files\/Serta_iSeries_NXG_Mattress_1500_Hybrid_Firm.webp?v=1769359378","url":"https:\/\/casabelladecor.net\/products\/serta-iseries-nxg-mattress-1500-hybrid-firm-foam-available-in-twin-xl-full-queen-king-and-cal-king-sizes","provider":"casabelladecor.net","version":"1.0","type":"link"}